Apparatus for pressing replacement sleeves into cylinder blocks



May 31, 1932.

G. G. ETl- IERIDGE APPARATUS FOR PRESSING REPLACEMENT SLEEVES INTO CYLINDER BLOCKS L 2 Sheets-Sheet Filed May 8, 1930 NVENTOR.

' ATTORNEY.

; G'z'rard 6 -1 7 6 May. 31, 1932. G. G. ETHERIDGE 1,861,304

APPARATUS FOR PRESSING REPLACEMENT SLEEVES INTO CYLINDER BLOCKS Fil ed May a, 1930 2 Sheets-Sheet 2 INVENTOR.

A TTORNEY.

Patented May 31, 1932 airman o. Ernnamen'or ATLANTA, ononera APPARATUS FOR rnnssmo REILACEMENT sLnEvEs nrro CYLINDER Brooks: t

Application filed May s, 193Q- Serial No. 450,765

This invention relates to an apparatus for pressing replacement sleeves into .cylinder blocks and has for its primary object to provide, in a manner as hereinafter set forth, an apparatus of such class which is portable and which may be bolted tothe top of a cylinder block without removing the latter, thereby pense in pressing replacement sleeves into position.

A further object ofthe invention is to provide an apparatus for the purpose aforesaid which includes a hydraulic ram which'may be operated with relatively fast strokes to press a sleeve into position, thereby eliminating the possibility of the sleeve sticking before it is fully inserted. I

A further object of the invention is to pro- 'vide an apparatus for pressing replacement sleeves into cylinder blocks and including a hydraulic ram as aforesaid, in'which the ram is provided with an adaptor for engagement with the sleeve being pressed into pos1t1on to protect the sleeve and to enable the ram to be used for sizes. 7

With the foregoing and other objects in pressing in sleeves of varying view, the invention consists ofthe novel construction, combination and arrangement of parts as hereinafter more particularly described, and as illustrated in the accompanylng drawings wherein is shown an embod1- ment of the invention, but it is to be understood that the description and drawings are to be taken as illustrative and that the invention is intended to be limited only by the scope of the claims hereunto appended.

In the accompanying drawings in which like numerals are employed to designate like parts throughout the several views:

Figure 1 is an elevation of an apparatus in accordance with this invention.

Figure 2 is a fragmentary sectional elevation thereof shown in operative position with respect to a cylinder block.

Figure 3 is a fragmentary elevation as viewed from the left of Figure 1.

Figure 4 is a section taken at a point indicated by the line 4-4 of Figure 3.

Figure 5isa section taken at [a point indi- I catedby the line 5-5 of Figure 3.

lar contour which is formed with a relative- .ly large centrally disposed opening 2 for I I disposition over the cylinder of acylinder effecting a material saving in time and ex block, such as 3. Arranged-concentrically of the opening 2, the base plate l is provided sage of suitable holdfast devices, such as 6,

for securing the base platel in position on the cylinder block. Secured to the base plate '1 are a plurality of upright supporting rods I 7, which, are preferably four in number and arranged inthe form of a square. ,Mounted on the rods 7 and connecting the same at their 2 E upper ends is a head plate 8 which is preferj I ably 'secured in position by means of a plu rality of su table nuts 9. In spaced relation to thesbase plate 1 is a platform 10 through I which the supporting rods 7 extend, the. platable manner, such as by welding. The platform 10 projects materially beyond the supform being secured to the rods in any suit- 8 porting rods at one side of the latter and such projecting portion of the platform is pro-' .vided with an inclined brace 11 which extends between the platform and the base plate 1. v N

Extending between the head plate 8 and platform 10 is a cylinder 12 which is arranged centrally of the supporting rods 7 and the lower end of which is in registry with an opening 13 through the platform 10. Projecting into the'lower end of the cylinder 12 is a ram l lwhich is provided at its upper end with a cup washer 15 to provide a seal be tween the ram and the wall of the cylinder 12 at the upper end of the ram. Removably securedto the lower end of the ram is an adaptor 16 which is in the form of a circular disk for engagement with the upper end of a sleeve, such as 17, and which is provided with a centrally disposed projection 18 depending into the sleeve. The disk portion of the adaptor is of appropriate diameter to enable the same to engage the entire upper end faces of sleeves of varying sizes, and is further removable from the ram in order that adaptors of varying sizes may be carried by the ram.

Mounted on the projecting portion of the platform 10 is a hydraulic pump 19 which includes a plunger rod 20 projecting from the upper end of the pump, the plunger rod 20 being bifurcated at its upper end. The plunger rod is operated by means of a hand lever 21 which is pivotally connected to the bifur cated upper end of the plunger rod at a point spaced from the inner end of the lever. Pivotally connected to the inner end of the lever 21 is the bifurcated upper end of a link 22, the bifurcated lower end of which is pivotally connected with a clamp 23 which encircles one of the supporting rods 7'and which is connected thereto to provide for vertical adjustment of the clamp with respect. to the supporting rod to which it is secured. Connected to one of the supporting rods 7, by means of suitable clamps 24, is a vacuum type supply tank 25 which is provided with a feed line 26 connecting the lower end of the tank with the lower end of the pump 19. Connecting the pump 19 with the upper end of,

the cylinder 12 is a conduit 27 which is provided adjacent the cylinder with a laterally extending branch 28 provided with a pressure gauge 29 and terminating in a valve coupling 30. Extending from the valve coupling 30 to'the supply tank 25 is a return pipe 31.

In the operation of the apparatus, the base plate 1 is secured in position on a cylinder block and the replacement sleeve is inserted through the opening-2 in alignment with the cylinder into which it is to be pressed. The operating lever 21 is depressed as shown in Figure 1 and the valve 32 for the coupling 30 is closed. The lever 21 is then raised which draws a fluid from the tank 25 into the pump 19. Upon depressing the lever the fluid is forced through the conduit 27 into the cylinder 12 against the upper end of the ram 14 which forces the adaptor carried thereby into engagement with the upper end of the sleeve. The reciprocation of the lever 21 is continued until the. sleeve 17 is driven into position, after which the valve 32 is open which permits the fluid to flow from the cylinder to the tank 25in order that the ram 14 may be raised with respect to the cylinder. The length of stroke of the hand lever 21 may be varied as desired by the adjustment of the clamp 23 longitudinally of the supporting rod to which it is connected.

It is thought that the many advantages of an apparatus in accordance with this invention will be readily apparent, and although the preferred embodiment of the invention is as illustrated and described, it is to be understood that changes in the size, shape and arrangement of parts may be resorted to, so long as such changes fall within the scope of the invention as defined in the appended claims.

What I claim is 1-- 1. In an apparatus for pressin replacement slee es into cylinder blocks, a base plate for mounting on top of the cylinder block and provided with an opening, aplurality of supporting rods projecting upwardly from the base plate, a head plate supported by and connecting the upper ends of the rods, a platform connected with the supporting rods and arranged above and in spaced relation to the base plate, said platform projecting laterally from said rods, a cylinder extending between the head plate and platform and aligning with said opening, a ram depending from the lower end of the cylinder, a hydraulic pump mounted on the lateral projecting portion of said platform, a vacuum type supply tank secured to one of the supporting rods above the pump, a conduit leading from the supply tank to the pump, a conduit leading from the pump to the upper end of the cylinder and having a branch return conduit to the supply tank, and a valve in said branch.

2. In an apparatus for pressing replace" ment sleeves into cylinder blocks, a base plate for mounting on top of a cylinder block, a plurality of supporting rods projecting upwardly from the base plate, a head plate supported by and connecting the upper ends of the rods, a platform connected with the supporting rods in spaced relation to the base plate, a cylinder extending between the head plate and platform, a ram projecting from the lower end of the cylinder, a hydraulic pump mounted on said platform, a vacuum type supply tank secured to one of the supporting rods, a conduit leading from the supply tank to the pump, a conduit leading from the pump to the upper end of the cylinder and having a branch return conduit to the supply tank, a valve in said branch, 3. plunger rod projecting from said pump, a

hand lever pivotally connected with said plunger rod in spaced relation to the inner end of the lever, and means for pivotally and adjustably connecting the inner end of the lever with one of said supporting rods.

3. In an apparatus for pressing replacement sleeves into cylinder blocks, a base plate for mounting on top of a cylinder block, a plurality of supporting rods projecting up wardly from the base plate, a head plate supported by and connecting the upperends of the rods, a platform connected with the supporting rods in spaced relation to the base plate, a cylinder extending between the head plate and platform, a ram projecting from the lower end of the cylinder, a hydraulic pump mounted on said platform, a vacuum type supply tank secured to one of the supporting rods, a conduit leading from the supply tank to the pump, a conduit leading from the pump to the upper end of the cylinder and having awbranch return conduit to the supply tank, a valve in said branch, a

Flunger rod projecting from said ump, a land lever pivotally connected with said plunger rod in spaced relation to the inner end of the lever, and means for pivotally and adjustably connecting the inner end of the lever with one of said supporting rods,

said connecting means including a link having one end pivotally connected to the inner end of the lever, and a clamp connected to one of the supporting rods for longitudinal adjustment with respect thereto and having the other end of the link pivotally connected therewith.

In testimony whereof, I afiix my signature hereto.

GIRARD G. ETHERIDGE. 

